Memory Expansion for Futaba R/C Transmitters

In the model buildingworld a lot of transmitters are used with a built-in microprocessor. This processor occupies itself with carrying out, among other things, mixing functions, null point control of the servo, reversal of the servo, etc. This provides two significant advantages. On the one hand there is no need to purchase expensive analogue mixers again, because all of that is now implemented in software. On the other hand, you can use different settings for different models, because the various settings can be stored in non-volatile memory.

Resistors:
R1 = 3kOhm 3
Capacitors:
C1 = 100nF
Semiconductors:
IC1 = 24C16
Miscellaneous:
K1 = 7-way connector (2 mm lead pitch!), e.g., Farnell # 672-348.